DE69029312D1 - Energy-saving circuit for controlling thin-film electroluminescent elements - Google Patents
Energy-saving circuit for controlling thin-film electroluminescent elementsInfo
- Publication number
- DE69029312D1 DE69029312D1 DE69029312T DE69029312T DE69029312D1 DE 69029312 D1 DE69029312 D1 DE 69029312D1 DE 69029312 T DE69029312 T DE 69029312T DE 69029312 T DE69029312 T DE 69029312T DE 69029312 D1 DE69029312 D1 DE 69029312D1
- Authority
- DE
- Germany
- Prior art keywords
- energy
- electroluminescent elements
- saving circuit
- film electroluminescent
- controlling thin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B44/00—Circuit arrangements for operating electroluminescent light sources
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Electroluminescent Light Sources (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/412,241 US5126727A (en) | 1989-09-25 | 1989-09-25 | Power saving drive circuit for tfel devices |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69029312D1 true DE69029312D1 (en) | 1997-01-16 |
DE69029312T2 DE69029312T2 (en) | 1997-05-22 |
Family
ID=23632210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69029312T Expired - Fee Related DE69029312T2 (en) | 1989-09-25 | 1990-09-21 | Energy-saving circuit for controlling thin-film electroluminescent elements |
Country Status (5)
Country | Link |
---|---|
US (1) | US5126727A (en) |
EP (1) | EP0420518B1 (en) |
JP (1) | JPH03205785A (en) |
CA (1) | CA2022971A1 (en) |
DE (1) | DE69029312T2 (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2260867B (en) * | 1991-10-23 | 1995-05-24 | Dowty Electronic Components | An A.C. power supply controller for an electroluminescent light source |
DE4321945A1 (en) * | 1993-07-02 | 1995-01-12 | Thomson Brandt Gmbh | Alternating voltage generator for controlling a plasma display screen |
EP0696024A3 (en) * | 1994-08-01 | 1996-08-21 | At & T Corp | Method and device for driving a liquid crystal display |
US5528256A (en) * | 1994-08-16 | 1996-06-18 | Vivid Semiconductor, Inc. | Power-saving circuit and method for driving liquid crystal display |
US5559402A (en) * | 1994-08-24 | 1996-09-24 | Hewlett-Packard Company | Power circuit with energy recovery for driving an electroluminescent device |
JP2755201B2 (en) * | 1994-09-28 | 1998-05-20 | 日本電気株式会社 | Drive circuit for plasma display panel |
JP2735014B2 (en) * | 1994-12-07 | 1998-04-02 | 日本電気株式会社 | Display panel drive circuit |
JPH1022071A (en) * | 1996-07-05 | 1998-01-23 | Polymertech Kk | El lighting device |
JP2001312257A (en) | 2000-05-02 | 2001-11-09 | Sharp Corp | Driving method for capacitive display device |
US7138994B2 (en) * | 2000-11-09 | 2006-11-21 | Lg Electronics Inc. | Energy recovering circuit with boosting voltage-up and energy efficient method using the same |
KR100421014B1 (en) * | 2001-08-28 | 2004-03-04 | 삼성전자주식회사 | Energy recovery apparatus and energy recovery circuit design method using a coupled inductor in the plasma display panel drive system |
KR100456680B1 (en) * | 2002-01-11 | 2004-11-10 | 재단법인서울대학교산학협력재단 | Driving circuit for energy recovery in plasma display panel |
JP4188618B2 (en) | 2002-04-01 | 2008-11-26 | パイオニア株式会社 | Display panel drive device |
KR100502349B1 (en) * | 2003-04-25 | 2005-07-20 | 삼성에스디아이 주식회사 | Magnetic coupled energy recovery circuit of plasma display panel and driving apparatus therewith |
KR100563461B1 (en) * | 2003-08-23 | 2006-03-23 | 엘지전자 주식회사 | Apparatus of Energy Recovery and Energy Recovering Method Using the same |
KR100649249B1 (en) * | 2004-06-30 | 2006-11-24 | 삼성에스디아이 주식회사 | Demultiplexer, and light emitting display deviceusing the same and display panel thereof |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1556450A (en) * | 1975-07-07 | 1979-11-21 | Sharp Kk | Combination of an el display panel and a drive system therefor |
US4070663A (en) * | 1975-07-07 | 1978-01-24 | Sharp Kabushiki Kaisha | Control system for driving a capacitive display unit such as an EL display panel |
US4535341A (en) * | 1983-08-19 | 1985-08-13 | Westinghouse Electric Corp. | Thin film electroluminescent line array emitter and printer |
US4707692A (en) * | 1984-11-30 | 1987-11-17 | Hewlett-Packard Company | Electroluminescent display drive system |
JPS61286866A (en) * | 1985-06-14 | 1986-12-17 | Nec Home Electronics Ltd | Optical printer |
US4733228A (en) * | 1985-07-31 | 1988-03-22 | Planar Systems, Inc. | Transformer-coupled drive network for a TFEL panel |
JPS6289090A (en) * | 1985-10-15 | 1987-04-23 | シャープ株式会社 | El panel driver |
JPH0634153B2 (en) * | 1986-11-27 | 1994-05-02 | シャープ株式会社 | Driving circuit for thin film EL display device |
US4922243A (en) * | 1988-04-26 | 1990-05-01 | Uticor Technology, Inc. | Voltage regulator circuit for use in a programmable message display |
US4958105A (en) * | 1988-12-09 | 1990-09-18 | United Technologies Corporation | Row driver for EL panels and the like with inductance coupling |
US4954752A (en) * | 1988-12-09 | 1990-09-04 | United Technologies Corporation | Row driver for EL panels and the like with transformer coupling |
-
1989
- 1989-09-25 US US07/412,241 patent/US5126727A/en not_active Expired - Fee Related
-
1990
- 1990-08-09 CA CA002022971A patent/CA2022971A1/en not_active Abandoned
- 1990-09-19 JP JP2251644A patent/JPH03205785A/en active Pending
- 1990-09-21 DE DE69029312T patent/DE69029312T2/en not_active Expired - Fee Related
- 1990-09-21 EP EP90310346A patent/EP0420518B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0420518A2 (en) | 1991-04-03 |
DE69029312T2 (en) | 1997-05-22 |
EP0420518A3 (en) | 1992-10-28 |
CA2022971A1 (en) | 1991-03-26 |
EP0420518B1 (en) | 1996-12-04 |
US5126727A (en) | 1992-06-30 |
JPH03205785A (en) | 1991-09-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |